| 指纹图像融合迭代增强 |
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| 引用本文： | 李朝友,孙济洲.指纹图像融合迭代增强[J].计算机应用,2011,31(6):1563-1565. |
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| 作者姓名： | 李朝友 孙济洲 |
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| 作者单位： | 1. 天津公安警官职业学院 计算机系，天津 3003822. 天津大学 计算机科学与技术学院，天津 300072 |
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| 基金项目： | 2010年天津市公安局科研基金资助项目 |
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| 摘 要： | 从刑事现场采集的嫌疑人的指纹图像常是低质量的、残缺的，针对现有方法只做一次增强或不适合增强这类指纹图像，提出了指纹图像融合迭代增强方法。该方法分别在频域和空域两次增强，并采用小波图像融合技术进行迭代增强，有效地提高了脊线的清晰度，接续了脊线的断裂，修补了脊线的残缺。实验结果表明，该算法具有良好的指纹图像增强效果，适合增强低质量的指纹图像。
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| 关 键 词： | 指纹图像增强 小波图像融合 迭代 脊线连接 指纹图像修补 |
| 收稿时间： | 2010-11-11 |
| 修稿时间： | 2011-01-04 |
Fingerprint image fusion iterative enhancement |
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| LI Chao-you,SUN Ji-zhou.Fingerprint image fusion iterative enhancement[J].journal of Computer Applications,2011,31(6):1563-1565. |
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| Authors: | LI Chao-you SUN Ji-zhou |
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| Affiliation: | 1. Department of Computer, Tianjin Public Security Profession College, Tianjin 300382, China2. School of Computer Science and Technology, Tianjin University, Tianjin 300072, China |
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| Abstract: | Suspect fingerprint images acquired from criminal scenes are often of low quality, or incomplete. The existing algorithms/methods found in literature are not suitable for enhancing these fingerprint images, because these algorithms/methods only perform enhancement once. In this paper, a new method for fingerprint image enhancement was proposed. The proposed method enhanced fingerprint image in Fourier domain and spatial domain by using iterative and wavelet fusion technique. Experimental results indicate that the proposed method significantly improves the performance of fingerprint enhancement — not only was the ridge definition enhanced, but also the ridge fracture was connected and the incompleteness was mended. Therefore, the proposed method is suitable for enhancing low quality fingerprint images. |
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| Keywords: | fingerprint image enhancement wavelet image fusion iterative ridge connection fingerprint image mending |
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